Those things can certainly lead to CPTSD. Not that they have to. But they can and many times do if the person doesn't have any sort of outside supports like a teacher, coach, other family member, friend/friend's parents, or what have you (they say the reason some people develop PTSD and some don't from the same traumatic event is the reaction and support they receive during/after the trauma.)

If you have the symptoms of CPTSD and your therapist says you have it, I'd trust that.

Wish I could help you solve/accept/tolerate boredom, loneliness, and tiredness. You have access to the internet clearly, maybe find a group you can chat with through zoom or some platform that uses text if you don't have a webcam? Or maybe try and get an emotional support or service animal if that's financially feasible?